In the Access Manager Console, click Access Control and
then the root or top-level realm under Realm Name.

Under Realm Attributes, add the load balancer
to Realm/DNS Aliases and then click Add.
For example: lb.example.com.

Click Save to save your changes.

For clients such as a policy agent, the load balancer (as opposed
to the individual Access Manager instances) should be the sole entry point.
For example, if you are using a policy agent, modify the appropriate entries
in the AMAgent.properties file to point to the load balancer.